Glossary
Market Order
An instruction to buy or sell immediately at the best available price.
A market order is an instruction to buy or sell immediately at the best price currently available. It prioritises execution certainty over price certainty and fills within seconds during regular market hours.
Use it when getting filled matters more than the exact price — closing a losing position quickly, or buying a highly liquid name where the bid-ask spread is essentially one tick.
Avoid market orders in thinly traded names, after-hours sessions, or volatile open and close windows. The realised price can drift painfully far from the displayed quote when liquidity is thin or one-sided.